Fix for issue 6628: no need to use an interceptor if the send was resolved.

sdk/lib/_internal/compiler/implementation/ssa/builder.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of ssa;
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
@@ skipping 2265 matching lines @@
     assert(Elements.isInstanceSend(send, elements));
     // TODO(kasperl): This is a convoluted way of checking if we're
     // generating code for a compound assignment. If we are, we need
     // to get the selector from the mapping for the AST selector node.
     Selector selector = (send.asSendSet() == null)
         ? elements.getSelector(send)
         : elements.getSelector(send.selector);
     assert(selector.isGetter());
     SourceString getterName = selector.name;
     Element staticInterceptor = null;
-    if (methodInterceptionEnabled) {
+    if (elements[send] == null && methodInterceptionEnabled) {
       staticInterceptor = interceptors.getStaticGetInterceptor(getterName);
     }
     bool hasGetter = compiler.world.hasAnyUserDefinedGetter(selector);
     if (staticInterceptor != null) {
       HStatic target = new HStatic(staticInterceptor);
       add(target);
       List<HInstruction> inputs = <HInstruction>[target, receiver];
       pushWithPosition(new HInvokeInterceptor(selector, inputs, !hasGetter),
                        send);
     } else {
@@ skipping 42 matching lines @@
   }
 
   void generateInstanceSetterWithCompiledReceiver(Send send,
                                                   HInstruction receiver,
                                                   HInstruction value) {
     assert(Elements.isInstanceSend(send, elements));
     Selector selector = elements.getSelector(send);
     assert(selector.isSetter());
     SourceString setterName = selector.name;
     Element staticInterceptor = null;
-    if (methodInterceptionEnabled) {
+    if (elements[send] == null && methodInterceptionEnabled) {
       staticInterceptor = interceptors.getStaticSetInterceptor(setterName);
     }
     bool hasSetter = compiler.world.hasAnyUserDefinedSetter(selector);
     if (staticInterceptor != null) {
       HStatic target = new HStatic(staticInterceptor);
       add(target);
       List<HInstruction> inputs = <HInstruction>[target, receiver, value];
       addWithPosition(new HInvokeInterceptor(selector, inputs), send);
     } else {
       addWithPosition(
@@ skipping 249 matching lines @@
     } else if (node.selector.asOperator() != null) {
       SourceString name = node.selector.asIdentifier().source;
       isNotEquals = identical(name.stringValue, '!=');
       dartMethodName = Elements.constructOperatorName(
           name, node.argumentsNode is Prefix);
     } else {
       dartMethodName = node.selector.asIdentifier().source;
     }
 
     Element interceptor = null;
-    if (methodInterceptionEnabled && node.receiver != null) {
+    if (methodInterceptionEnabled && elements[node] == null) {
       interceptor = interceptors.getStaticInterceptor(dartMethodName,
                                                       node.argumentCount());
     }
     if (interceptor != null) {
       HStatic target = new HStatic(interceptor);
       add(target);
       inputs.add(target);
       visit(node.receiver);
       inputs.add(pop());
       addGenericSendArgumentsToList(node.arguments, inputs);
@@ skipping 2141 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }